E6420BBG Semtech, E6420BBG Datasheet

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E6420BBG

Manufacturer Part Number
E6420BBG
Description
Manufacturer
Semtech
Datasheet

Specifications of E6420BBG

Lead Free Status / RoHS Status
Not Compliant
Revision 4 / April 29, 2002
The Edge6420 is a monolithic device which has 64
integrated DACs that are designed specifically for all per
channel wide-voltage and current levels needed for pin
electronics inside automatic test equipment. The chip
can also be used for other applications requiring multiple
integrated voltage or current DAC outputs.
Voltage DACs
Current DACs
The DACs are programmed using a serial interface.
The inclusion of 64 total DACs into 1 package offers an
extremely high density, flexible solution normally
implemented using multiple components.
HIGH-PERFORMANCE PRODUCTS – ATE
Description
Functional Block Diagram
• Wide voltage (17V range)
• Adjustable full scale range
• Adjustable minimum output
• 13 bits resolution
• ~3.6 mA full scale range
• Adjustable full scale range
• 6/13 bits resolution
UPDATE
RESET*
CK
CE
SDI
SDO
DAC 63
DAC 0
CK_OUT
Channel 0
Channel 1
Channel 2
Channel 3
VOUT_CH0_[0:10]
VOUT_CH1_[0:10]
VOUT_CH2_[0:10]
VOUT_CH3_[0:10]
IOUT_CH0_[0:4]
IOUT_CH1[0:4]
IOUT_CH2_[0:4]
IOUT_CH3_[0:4]
1
64 Total DACs/Package Including:
• Test Equipment
• Applications requiring multiple programmable
Features
Applications
• Wide Voltage Output Range (17V Range); Useful
• 44 Voltage DACs / Package
• 20 Current DACs / Package
• Adjustable Full Scale Range
• Adjustable Output Voltage Offset
• Small 13x13mm BGA Package
• All DACs are Guaranteed Monotonic
voltage and currents
for Supervoltage
Per-Pin Electronics
Companion DAC
Edge6420
www .semtech.com

Related parts for E6420BBG

E6420BBG Summary of contents

Page 1

... Small 13x13mm BGA Package • All DACs are Guaranteed Monotonic Applications • Test Equipment • Applications requiring multiple programmable voltage and currents Channel 0 VOUT_CH0_[0:10] IOUT_CH0_[0:4] Channel 1 VOUT_CH1_[0:10] IOUT_CH1[0:4] Channel 2 VOUT_CH2_[0:10] IOUT_CH2_[0:4] Channel 3 VOUT_CH3_[0:10] IOUT_CH3_[0:4] 1 Edge6420 Per-Pin Electronics Companion DAC www .semtech.com ...

Page 2

... HIGH-PERFORMANCE PRODUCTS – ATE PIN Description 2000 Semtech Corp Edge6420 www .semtech.com ...

Page 3

... HIGH-PERFORMANCE PRODUCTS – ATE PIN Description (continued 2000 Semtech Corp Edge6420 www .semtech.com ...

Page 4

... RESET* UPDATE AVDD DGND VREF NOTE: Balls populating the inner 9x9 grid are for improved thermal dissipation. This middle grid of balls should be connected to the VEE plane or left floating. Order E6420BBG if populated middle desired R_OFFSET_C AVDD AGND R_GAIN_F N/C P5 ...

Page 5

... F10 F9 G8 G10 G9 G7 NOTE: Balls populating the inner 9x9 grid are for improved thermal H8 H10 H9 H7 dissipation. This middle grid of balls should be connected to the VEE plane or left floating. Order E6420BBG if populated middle J8 J7 J11 J10 J9 is desired. K8 K11 K10 L10 L9 ...

Page 6

... A of offset current at Code 0. Note 3: Compliance specified in the table is at IOUT = 1.3mA. Maximum compliance is lower at higher currents. Please refer to specifications for compliance at other output currents. 2000 Semtech Corp. Grouping of DACs DACs are separated into 4 channels of 6 distinct functional groups. Groups are defined by: – ...

Page 7

... The recommended resistor values for the above equations are as follows: R_MASTER = 100K (0.1% precision) R_GAIN_[A:D] = (0.4 to 1.15) * R_MASTER R_OFFSET_[A:D] = (0.0 to 1.2) * R_MASTER 2000 Semtech Corp. Minimum / Maximum Output Voltages See Table 2 for the minimum and maximum possible voltages of a voltage output. T able 2. Minimum/Maximum Output Voltages ...

Page 8

... Note 2.5V REF 2000 Semtech Corp. Group D DACs There are two Group D DACs/channel. Group D DACs have a centralized offset, gain and range that is independent of any other group. Group D DACs are characterized by 13 bit resolution and ...

Page 9

... Current outputs (current flows out of the chip) • 6 bit resolution • Fixed offset (0 typical) • Adjustable full scale range (but < 3.6 mA). The output current equation for Group F DACs is: where R_GAIN_F Note 2.5V REF 2000 Semtech Corp. 156 k 156 k 9 Edge6420 www .semtech.com ...

Page 10

... HIGH-PERFORMANCE PRODUCTS – ATE Circuit Description (continued) Address Map 2000 Semtech Corp Edge6420 & www .semtech.com ...

Page 11

... Decode and Individual DAC Update RESET* UPDATE SDI RESET* Programming Logic 2000 Semtech Corp. This is a 13-bit latch for DAC (Note: there are some current output DACs that require only 6-bit latches) ADDRESS DECODER ADDR 7 Delay CENTRAL DAC LATCH (24 Latches) LOAD ...

Page 12

... Bits reserved for future upgradability Figure 2b. Format of Address and Data in Shift Register for Group F DACs (6-bits) 2000 Semtech Corp. Group F uses only 6 bits, and these bits must be programmed as shown in Figure 2b. 24 clock cycles are required for programming, with A0 loaded on the first rising CK edge, and D8 (as shown in Figure 2b) loaded on the 24th rising CK edge ...

Page 13

... By simply forcing the RESET* pulse low for a minimum when a CK frequency of 50 MHz or less is used, the 6420 will clear properly to the known states shown above. 2000 Semtech Corp. Power Supply Sequence Power supplies should be asserted in the following order: 1. VEE 2 ...

Page 14

... ADDRESS DECODER SCAN_OUT NOTE: WHEN ADDRESS 64 IS INVOKED (PARALLEL LOAD), SCAN IS DISABLED. 2000 Semtech Corp. The typical "ON" resistance of the FET switch is 100 k , but can vary from 180 function of process and output voltage. Notes when Using SCAN Feature with Multiple Chips ...

Page 15

... Note 1: Max compliance depends on maximum current required. See specifications for limits. Table 8. Application Chart – Possible Chip Specification 2000 Semtech Corp. Edge 4707 PPMU • –2.8 < PPMU (MI) compare high voltage < +2.8V • –2.8 < PPMU (MI) compare low voltage < +2.8V • –3.0 < PPMU (FV) < +14.0V Other • ...

Page 16

... All current outputs require capacitive loading; the amount of loading needed to ensure stability is dependent on the impedance that the current outputs of the 6420 drive. For impedances such as what is seen at the E720 current inputs (ISK, ISRC, IBIAS, RADJ, and FADJ recommended that used. 2000 Semtech Corp. +5V +5V – VEE ...

Page 17

... V = (–600 * I COMPLIANCE See Figure 8 for a graphical depiction. Note current sourced from output of DAC. OUT 2000 Semtech Corp. Care should be taken to ensure that devices being driven by Group E and F DACs are designed to be within the compliance specification ˚C (%/˚C) Figure 8. Compliance of Current Output DACs ...

Page 18

... Package warp shall be 0.050 mm maximum. 10. Substrate material base is BT resin. 11. The overall package thickness “A” already considers collapse balls. 12. Dimensioning and tolerancing per ASME Y14.5M 1994. 2000 Semtech Corp. Edge6420BBG Package 0.10 –A– –B– (E1) E BOTTOM VIEW ...

Page 19

... Not production tested. Note 2: User should use a precision supply for VREF setting because the offset and gain of all DACs will change proportionately to a deviation from VREF = 2.500V. See Equations 1 and 5 to determine the extent of offset and gain change to deviations in VREF. 2000 Semtech Corp ...

Page 20

... Exposure to absolute maximum conditions for extended periods may affect device reliability. Note 1: Exceeding this limit may result in a monostable output state at maximum current. Note 2: Full scale step definition: 11.5V step for Group DACs, 20V step for Group C, 3.6 mA steps for Groups E and F. 2000 Semtech Corp ...

Page 21

... HIGH-PERFORMANCE PRODUCTS – ATE DC Characteristics – 2000 Semtech Corp – – Edge6420 – – – – – – – – – – – – www .semtech.com µ µ ˚ µ V ˚ µ V ˚ µ V ˚ µ V ˚ ...

Page 22

... HIGH-PERFORMANCE PRODUCTS – ATE DC Characteristics (continued – 2000 Semtech Corp – 3 – – – – – – Edge6420 – – – – – – www .semtech.com µ ˚ µ V ˚ µ V ˚ µ V ˚ µ V ˚ ...

Page 23

... 2000 Semtech Corp – – – – – 2 – – 1 – – – – – – – – 1 – Edge6420 – – – – – – – ± – – – – – ± www .semtech.com µ ˚ ˚ µ ˚ / ...

Page 24

... Assuming R_MASTER = 100 K , stable VREF, nominal external resistor values, and stable supply voltage values. Note 4: Calibration points are: Data values of 0000H and 1FFFH. Note 5: Calibration points are: Data values of OOOOH and OO3FH. Note 6: See “Applications Information” for further information. 2000 Semtech Corp ...

Page 25

... CK24 refers to 24th rising clock edge, which corresponds to a full shift register. Note that a falling CK24 edge is also required for proper operation of circuit. Note 4: The 6420 is production tested at 55 MHz only, with 50% duty cycle. Note 5: Duty cycle % shown refers to “high” duration of clock in a period. 2000 Semtech Corp ...

Page 26

... HIGH-PERFORMANCE PRODUCTS – ATE Ordering Information M Contact Information 10021 Willow Creek Rd., San Diego, CA 92131 Phone: (858)695-1808 FAX (858)695-2633 2000 Semtech Corp Semtech Corporation High-Performance Division 26 Edge6420 www .semtech.com ...

Page 27

... HIGH-PERFORMANCE PRODUCTS – ATE Revision History Current Revision: April 29, 2002 Previous Revision: September 25, 2001 2000 Semtech Corp ± ± < ± ± ± < ± ± ± < ± ± < ± Edge6420 " " " " – – – – – – – – ...

Page 28

... HIGH-PERFORMANCE PRODUCTS – ATE Revision History Current Revision: September 25, 2001 Previous Revision: August 3, 2001 2000 Semtech Corp – – – – – – – – – – – – – – – ± – Edge6420 " " – – " " . ...

Page 29

... HIGH-PERFORMANCE PRODUCTS – ATE Revision History Current Revision: August 3, 2001 Previous Revision: June 28, 2001 & 2000 Semtech Corp ˚ – – ± – – – µ Edge6420 " " " & & ˚ " " – – – ± – – ...

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